Gauges & Meters
Find the right pressure gauge to monitor and troubleshoot your washer with confidence.
This category includes durable liquid-filled and dry gauges in common pressure ranges and connection sizes for inline or panel mounting.
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5,000 PSI Pressure Gauge
$36.97 -
Sale!
Pressure Test Gauge – 5000 PSI with 3/8 inch Quick Connects
Original price was: $90.72.$75.94Current price is: $75.94. -
Brass Metering Valve 1/4″
$41.47 -
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Suttner ST-61 Metering Valve
$26.47 -
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Fuel Pressure Gauge
$23.47 -
Testing Thermometer Gauge
$36.97 -
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Pressure Test Gauge 3000 PSI
$25.47
Gauges for Pressure Washers: Selection & Fitment Guide
What youll find in this category
Shop pressure gauges built for pressure-washing and industrial cleaning. Options include dry and liquid-filled designs, bottom or back mounts, and common NPT connections for installing at the pump, manifold, or on a test hose. Use this guide to match range, connection, and construction to your setup.
For most daily checks, pick a gauge range where your normal operating pressure sits near the middle of the dial for easier reading and service life.
Popular gauge options
Liquid-Filled vs. Dry
- Liquid-filled gauges help damp vibration and pointer flutter in high-pulsation wash systems.
- Dry gauges are economical for stable, low-vibration locations or occasional test use.
Mounting & Connection
- Choose bottom or center-back mount to match your panel or inline adapter.
- Typical process connections are 1/4a0NPT or 1/2a0NPT; confirm thread size and gender before ordering.
Materials & Media
- Brass internals for water and general cleaning solutions.
- Stainless internals/case for harsher environments or when chemical resistance is a priority.
Protection & Accessories
- Snubbers/pulsation dampeners help protect the movement from rapid spikes.
- Test tees/hoses make temporary checks easy without re-plumbing your machine.
Quick chooser
| Use case | Suggested gauge type | Notes |
|---|---|---|
| Daily system pressure check | Liquid-filled, bottom mount | Pick a range that centers normal pressure; add a snubber if pulsation is noticeable. |
| Panel-mounted readout | Dry or liquid-filled, center-back mount | Verify case size fits your panel opening and visibility needs. |
| Mobile service/test kit | Compact dry gauge on test hose | Use a tee or quick-couple adapter; choose a broad enough range for varied machines. |
| Harsh or wet environment | Liquid-filled with stainless case | Use protective boots or guards as needed; keep the lens clean for readability. |
Fitment tips
- Location: Install where the reading best represents system pressure (commonly near the pump outlet or on a test port).
- Threads: Confirm NPT size and seal with appropriate thread sealant; do not overtighten.
- Pulsation: If the pointer vibrates, add a snubber/dampener and verify the gauge is mounted rigidly.
- Liquid-filled venting: Some gauges include a vent plug; follow product instructions if venting is required after installation.
Never exceed the gauges maximum rated pressure. Overpressure can permanently damage the movement and create a safety hazard.
Equipment selection notes
- Choose a pressure range that keeps typical operating pressure away from the extreme low or high end of the scale.
- Use stainless wetted parts when chemical compatibility or corrosion resistance is a concern.
- For frequent pressure cycling, combine a liquid-filled gauge with a snubber for added protection.
- Back-mount gauges suit panel installations; bottom-mount gauges suit inline adapters and tees.
Care and troubleshooting
- Inspect the lens for cracks and moisture; replace damaged gauges promptly.
- Watch for slow or sticking pointersoften a sign of pulsation, clogging, or damage.
- Check for leaks at the connection after installation and recheck after first use.
- For critical accuracy needs, use a recently calibrated test gauge to verify readings.
Need help matching a gauge to your washer?
Our team can help you confirm the right range, mount, and connection for your machine and the accessories that protect it.
Gauges & Meters FAQ's
Do I need stainless steel internals?
Use stainless when corrosion resistance or exposure to harsh chemicals is a priority. Brass is common for water and general cleaning solutions.
How can I reduce pointer vibration or an unreadable display?
Add a snubber or pulsation dampener and verify rigid mounting. A liquid-filled gauge also helps reduce pointer flutter in pulsating systems.
Where should a gauge be installed on a pressure washer?
Place it where you need to verify system pressure—commonly near the pump outlet, on a manifold port, or in a test tee/hose. Ensure the gauge is visible and protected from impact.
What connection size do most pressure washer gauges use?
Many applications use 1/4 NPT or 1/2 NPT connections. Always verify thread size and gender on your machine or adapter before ordering.
Which pressure range should I choose for my washer?
Select a range that keeps your normal operating pressure near the middle of the dial. This improves readability and helps the gauge handle everyday cycling.
What’s the difference between liquid-filled and dry pressure gauges?
Liquid-filled gauges contain a damping fluid that helps control pointer flutter in high-vibration or pulsating systems. Dry gauges are economical and work well in stable locations or for occasional testing.
